Madara wins, comfortably. Taijutsu skill, speed and strength all go to Madara, and it's not even close in the latter two. EMS precog on top of that superior speed only means Sasuke gets raped in a CQC match. Gunbai lets him block most of Sasuke's Ninjutsu and hit him back with Uchiha Gaeshi, which can also be used with Katon (Since it's Fuuton) to power it up, turning Sasuke into a nice pig roast.
Then there's the fact that his Katons literally cover the whole fighting area. Sasuke dies to multiple uses of it.
